27results about How to "Good chip removal effect" patented technology

The utility model discloses an adjustable clamp for ultrasonic vibration auxiliary low-voltage micro-arc machining, and relates to the technical field of ultrasonic vibration auxiliary machining. The clamp comprises a three-jaw chuck, an ultrasonic vibration device and a nylon outer shell. A threaded hole is formed in the tail end of the three-jaw chuck and used for being connected with the ultrasonic vibration device and the nylon outer shell. The ultrasonic vibration device is arranged in the nylon outer shell and comprises an ultrasonic transducer and an ultrasonic amplitude-change pole, and the ultrasonic transducer is formed by stacking piezoelectric ceramics and electrode plates and is fixed through a front end cover and a rear end cover; the nylon outer shell is of a square-outside and round-inside structure, the bottom of the nylon outer shell is matched with the rear end cover, and an opening is connected with the three-jaw chuck to provide insulation protection for the whole device. By combining low-voltage micro-arc machining with ultrasonic vibration, efficient and high-precision machining is achieved, and the ultrasonic vibration machine has the advantages of being compact in structure, high in stability, integrated in insulation design, adjustable in vibration direction and the like, and is suitable for precision machining of materials difficult to machine in the fields of aerospace, military industry, medical treatment and the like.

The present invention relates to the field of precision machining technology, and discloses a cutting tool and a tool head structure thereof, wherein the tool head structure comprises a cutting edge portion, and the cutting edge portion comprises a cutting body, wherein the outer surface of the cutting body is a forwardly convex arc surface, and the outer surface of the cutting body is provided with a first cutting edge and at least two second cutting edges, wherein the first cutting edge extends from one side of the cutting body to its top area, and then extends to the other side of the cutting body, and each of the second cutting edges is respectively provided on both sides of the first cutting edge, and a first chip removal groove is defined between the first cutting edge and the second cutting edge adjacent thereto, and the width of the first chip removal groove gradually increases from the top area of ​​the cutting body to both ends. The beneficial effects of the present invention are: high machining accuracy, high machining stability, good chip removal performance, and the service life of the tool can be greatly extended.

The utility model discloses a range-extending tool rest of a center-moving lathe, which comprises a tool rest body matched with a gang tool rest. A cutter mounting square groove for mounting a square cutter bar is formed in the cutter rest body; and a high-pressure cutting oil integrated block mounting platform is arranged on the tool rest body. Through the application of the range-extending tool rest, guide-sleeve-free mode cutting can be implemented, and the actual material tailing is between 95 mm and 115 mm, so that one more workpiece can be manufactured for each bar, and compared with the original production mode, the range-extending tool rest has the advantages that raw materials are greatly saved, and the production requirement and the quality requirement are completely met at the same time.

A gas-guide tube renovation method comprises the following steps that S1, a gas-guide tube is cut into a plurality of sections of tube bodies, then the inner wall renovation procedure and the outer wall renovation procedure are conducted on the tube bodies, and the inner wall renovation procedure S11 comprises the steps that an inner hole of each tube body is renovated through a reaming tool, and meanwhile cooling liquid is continuously injected from the tail end of the inner hole of each tube body; in the outer wall renovating procedure S12, the pipe body is driven to rotate around the axis of the pipe body and is moved in the axial direction, so that the peripheral wall of the pipe body from the head end to the tail end is ground and renovated by a grinding wheel; s2, the pipe body subjected to the inner wall renovating procedure and the outer wall renovating procedure is degreased and cleaned through a cleaning solution; and S3, the cleaned pipe body is re-spliced or welded to be recovered into the gas-guide pipe. According to the renovating method of the scheme, a large amount of processing time can be saved, the processing cost is reduced, new materials do not need to be input again, the material cost is saved, and therefore the use cost of a client side is effectively reduced. The invention further provides gas-guide tube renovation equipment.

The utility model discloses a chip removal structure which comprises a vacuum generator and a waste chip collecting container, the vacuum generator is connected with the waste chip collecting container, the vacuum generator comprises a generator shell, a generator core and a generator chip removal nozzle, an air cavity is formed in the generator shell and communicated with an air inlet of the generator shell, and the generator chip removal nozzle is communicated with the air inlet of the generator shell. The upper end of a core body channel of the generator core body is communicated with a waste chip suction inlet of the generator shell, a vent hole is formed in the generator core body, the generator chip removal nozzle is installed at the bottom of the generator shell, and an inlet of a chip removal nozzle channel of the generator chip removal nozzle is in butt joint with a core body channel flaring of the generator core body. An outlet of the chip removal nozzle channel communicates with the interior of the waste chip collecting container. The chip removal device is reasonable in design, simpler in structure and low in use cost, the vacuum generator can suck chips conveyed from a punching device of the cutting machine in a vacuum negative pressure mode, the chips are discharged into the chip collection container to be collected, and the chip removal effect is good.

The utility model discloses a spinning device used for silencer supporting tube processing, which comprises a fixing table and a driving device, a steering mechanism is installed inside the fixing table, the top end of the steering mechanism is fixedly connected with a rotating seat, a spinning mechanism is fixedly installed on the rotating seat, the driving device is fixedly installed on the top surface of the fixing table, and the rotating seat is fixedly connected with the driving device. And one end of the driving device is connected with a scrap removing mechanism. According to the spinning device for silencer supporting pipe machining, in the process that the driving device drives the sleeve base and the silencer supporting pipe to rotate, the chip removal mechanism can be driven to operate, and fixed-point chip suction and chip removal work can be conducted on the connecting position of the spinning mechanism and the silencer supporting pipe in the spinning process through the chip removal mechanism; and the chip removal effect of the spinning device for silencer supporting pipe machining is improved, meanwhile, the situation that the surrounding working environment is affected by chip splashing can be effectively avoided, and the using effect is improved.

The present invention relates to the technical field of bearing processing, and proposes an inner diameter grinder for stainless steel bearing processing, comprising: a machine tool body having an installation space, the installation space being used to install bearings; a feed member being slidably arranged on the machine tool body; a pneumatic driver being arranged on the installation portion, the pneumatic driver having a first air inlet and a liquid inlet, the first air inlet being used to introduce compressed air, the liquid inlet being used to introduce grinding fluid, the pneumatic driver having a rotating end, the rotating end having a liquid outlet and a first air outlet, the first air inlet being connected to the first air outlet, the liquid inlet being connected to the liquid outlet; a grinding wheel being arranged on the rotating end, the pneumatic driver being used to drive the grinding wheel to rotate after compressed air is introduced into the first air inlet. The above technical scheme solves the problem that a small amount of extremely small debris will remain on the inner ring of the stainless steel bearing during grinding, thus affecting the subsequent use of the stainless steel bearing.

The application provides a special drilling tool for drilling a taper hole and a manufacturing method thereof, and steps are as follows: step 1, preparing a blank; step 2, processing a taper; step 3, processing a grinding groove; step 4, processing a main flank surface 2 of a chisel; step 5, grinding two main flank surfaces 1 of a drill tip; and step 6, grinding a first chip flute. The application is used for drilling a small inner hole and a large outer hole, effectively improves the drilling efficiency of the taper hole, and solves the processing problem of one-time forming of the taper hole.

The invention relates to the technical field of circuit board processing, in particular to a pneumatic vibration main shaft for circuit board processing and a circuit board drilling method. The main shaft comprises a main shaft shell, a floating rotating shaft and a pneumatic vibration assembly. The pneumatic vibration assembly is provided with a first air pressure cavity and a second air pressure cavity which are oppositely arranged in the axial direction of the floating rotating shaft, and a first air path and a second air path which are communicated with the two cavities and can independently control air pressure. By controlling the air pressure of the two air paths, a controlled air pressure difference is formed between the two cavities, so that the floating rotating shaft is driven to generate axial reciprocating vibration. Axial micro-vibration of the drill point is achieved through the pure pneumatic principle, chip removal in the drilling process is effectively promoted, the hole wall quality and the drilling precision are improved, and the system is simple in structure and high in anti-interference capacity.

The utility model discloses a double main shaft three knife tower numerical control machine tool, including the machine base that is equipped with three parallel X axle guide rail. Two independent control's knife tower mechanism is equipped on first X axle guide rail, can cooperate or independent operation, the coaxial opposite arrangement of first main shaft mechanism and movable second main shaft mechanism is equipped on second X axle guide rail, realizes workpiece automatic butt joint and shift, third X axle guide rail is equipped with third knife tower mechanism. The machine tool passes through the innovative layout of three knife towers and double main shaft, supports multiple high -efficient processing mode: two knife towers can synchronize and process one end of a workpiece, and third knife tower processes the other end or another workpiece, also can realize workpiece automatic shift to another main shaft after one end processing, and is continued processing the other end by any one or two knife towers. Therefore, on one hand can greatly improve production efficiency and equipment utilization, on the other hand eliminates the manual turn -around clamping link, positioning error and downtime are reduced significantly, is suitable for the high -speed precision machining of complex parts.

The utility model belongs to the technical field of woodworking tools, and particularly relates to a four-edge woodworking gang drill. The extension surface of the outer side surface of the cutting edge body defines a drill bit peripheral surface, the drill bit peripheral surface is of an inverted conical structure, and the cutting edge end of the drill bit is of an arc structure and is obliquely distributed on the drill bit peripheral surface; a cylindrical drilling machining face coaxial with the drill bit is formed at the end, away from the drill rod, of the drill bit, a drill bit auxiliary chip removal space is formed between the outer side face of the cutting edge body and the drilling machining face, the drill bit auxiliary chip removal space is communicated with an auxiliary chip removal groove in the drill rod, and the drill bit auxiliary chip removal space is gradually increased in the direction from the drill bit to the drill handle. One part of wood chips generated in the drilling machining process are discharged through the main chip discharging groove, and the other part of the wood chips are discharged through the drill bit auxiliary chip discharging space and the auxiliary chip discharging groove. Compared with the prior art that a spirally extending groove is formed in the cylindrical side face of the drill bit, the machining difficulty of grinding the peripheral face of the drill bit into the inverted-cone-shaped structure is lower. The machining difficulty of the drill bit is reduced on the premise that the good chip removal effect is guaranteed.

The utility model provides a PCD (Poly Crystal Diamond) anti-vibration precise threading tool blade, which is characterized in that the tool nose angle is 60 degrees, the rear angle of the right edge is 1 degree, and the rear angle of the left edge is 6 degrees. According to the utility model, the polycrystalline diamond PCD material is adopted, the friction ratio is extremely low, the temperature resistance is higher, the durability is high, the physical wear resistance, the chemical wear resistance, the crescent wear resistance, the mechanical wear resistance and the cold welding wear resistance are higher, and the like. The angle of the tool nose is 60 degrees, the relief angle of the right blade is 1 degree, and the relief angle of the left blade is 6 degrees, so that the cutting rigidity of the blade can be ensured, the cutting force is better, the cutting resistance is lower, the strength is smaller, the resonance can be prevented, and the cutter has good impact resistance and cutting sharpness. And meanwhile, the PCD blade can be stably fed for cutting, a high-precision cutting surface with a controllable hole pattern of an aluminum alloy workpiece to be machined can be ensured, and the tool durability is quite good.

The invention discloses a rotary cutting tool comprising a plurality of cutting teeth, which is characterized in that a cutter body is provided with a plurality of cutter body chip accommodating grooves and cutting teeth corresponding to the cutter body chip accommodating grooves, and a chip breaking groove is formed in the front cutter surface of the cutter body, so that a zigzag cutting edge comprising the plurality of cutting teeth is formed on the cutting teeth; the cutter body chip containing groove is a straight groove, and at least part of the cutting teeth of the sawtooth-shaped cutting edge are provided with spiral cutting edge sections, or the cutter body chip containing groove is a spiral groove, and at least part of the cutting teeth of the sawtooth-shaped cutting edge are provided with vertical cutting edge sections and / or reverse cutting edge sections. According to the cutter, cutting force (including axial cutting pressure, axial cutting tension and radial cutting force) from different directions can be counteracted or balanced, double dispersion of the cutting force and cutting heat is achieved, the stability of the cutter in the machining process can be improved, and the temperature generated in the cutting process is reduced.

The utility model discloses a double-core radial milling cutter which comprises a main body unit, the main body unit comprises a cutter handle and a cutting handle, an inner core is arranged in the center of the cutting handle, a plurality of blades are arranged on the inner core, a chip groove is formed between every two adjacent blades and the inner core, each chip groove is arranged to be in a U shape, and the cutter handle is arranged on the main body unit. Each chip groove comprises a front-end groove and a rear-end groove, and the core diameter at the position of each front-end groove is 0.6-0.65 times of the diameter of the cutting edge. The chip groove has the beneficial effects that the chip grooves are U-shaped, and the core diameter at the position of each front-end groove is 0.6-0.65 times of the diameter of the cutting edge, so that a relatively large chip space can be kept; and the core diameter of the rear end groove is set to be 0.75 times of the diameter of the cutting edge, so that the whole cutter has excellent chip removal capacity and extremely high rigidity even when used for cutting deep grooves or deep cavities, the cutting efficiency is improved, and the service life of the cutter is prolonged.

The utility model discloses a double main shaft double knife tower numerical control machine tool, including frame, first processing device and second processing device. Frame is equipped with two parallel X axle guide rails. First processing device includes the first main shaft mechanism fixed in first X axle guide rail one end and sets up first knife tower mechanism on it, and first knife tower mechanism can move along X, Y axle. Second processing device includes setting up second knife tower mechanism on second X axle guide rail and second main shaft mechanism can move along X axle, and second main shaft mechanism is coaxial with first main shaft mechanism and sets up. Through coaxial double main shaft design has realized workpiece automatic transfer and seamless butt joint between two main shafts, and can complete workpiece double -end continuous processing without manual intervention, through the independent or synchronous processing capacity of double knife tower, can process different workpiece respectively to improve equipment utilization rate, can also process the two ends of the same workpiece in cooperation to shorten single piece processing time greatly, has improved production efficiency and automation level obviously.

The invention discloses a rotary cutting tool with a zigzag cutting edge, which comprises a cutter body and is characterized in that a chip breaker groove is arranged on the front cutter surface of the cutter body, so that the zigzag cutting edge comprising a plurality of cutting teeth is formed on the cutting teeth, the groove surface of the chip breaker groove is provided with a cutting guide surface, and the cutting guide surface is provided with a plurality of cutting teeth. Therefore, cuttings can be guided into the cutter body chip containing groove or guided in the chip removal direction of the cutter body chip containing groove. The sawtooth-shaped cutting edge can effectively offset or balance cutting force, including axial cutting pressure, axial cutting tension and radial cutting force, from different directions, double dispersion of the cutting force and cutting heat is achieved, the temperature generated in the cutting process is reduced, the stability of the cutter in the machining process is greatly improved, and the service life of the cutter is prolonged. The service life of the cutter is prolonged, the machining efficiency and precision are remarkably improved, and a brand-new technical path is developed for machining of the metal thin-wall part.

The invention discloses a cutting blade, and belongs to the technical field of cutting tools. And each group of auxiliary chip breaking arms and main chip breaking arms are arranged along the radial direction of the cutting part and have a height difference. In this way, the front end of the main chip breaking arm and the auxiliary chip breaking grooves in the auxiliary chip breaking arms can form a first chip breaker, a main chip breaking groove is defined by the two adjacent sets of main chip breaking arms and auxiliary chip breaking arms and a part in the cutting face, and then a second chip breaker is formed through combination. Under the working conditions of low feeding and low cutting depth, the first chip breaker acts, formed cutting is thin and narrow, slender chips are formed, under the action of the first chip breaker, the cutting can form a small curling radius, collection of broken chips is facilitated, and the chip removal effect of the slender chips is optimized. Under the working condition of medium-high feeding, due to the fact that the whole front-arranged first chip breaker is gentle, the influence on cutting resistance is small, in the covering process of cuttings, the front end of the second chip breaker can conduct pre-flow guiding on the cuttings, the second chip breaker can fully act, and the more excellent chip breaking effect is provided.

The utility model discloses a chipper cutterhead and a chipper, the chipper cutterhead comprises a cutterhead (1), the edge of the cutterhead (1) is provided with a cutting opening (101), a first mounting surface (102) of the cutterhead (1) is provided with a cutting knife (2), and the cutting knife (2) is located on one side of the cutting opening (101); a chip guide piece (3) is arranged on a second mounting surface (103), opposite to the first mounting surface (102), of the cutter head (1), the chip guide piece (3) is of a spiral structure, and one end of the chip guide piece (3) is connected with one side, provided with the cutting knife (2), of the cutting opening (101); when the cutter head (1) rotates, wood chips cut from the cutting opening (101) can be discharged out of the cutter head (1) along the spiral line of the chip guiding piece (3). The cutterhead of the branch crusher and the cutterhead of the branch crusher can discharge wood chips out of the cutterhead in time, the chip removal effect is good, and the phenomenon of blockage is avoided.

The invention relates to the technical field of engraving and milling machines, in particular to a blanking device of an engraving and milling machine, which comprises a machine body, guide rails symmetrically and fixedly connected to the top of the machine body, a mounting frame slidably connected to the tops of the guide rails, a spindle box slidably connected to the mounting frame, a driving spindle slidably connected to the bottom of the spindle box, and an engraving and milling cutter head fixedly connected to the bottom end of the driving spindle. A stepping motor drives a first synchronous wheel to rotate, a cleaning cylinder is driven to rotate through the first synchronous wheel, a second synchronous wheel and a synchronous belt, a plurality of brush columns on the cleaning cylinder are forced to stretch out gradually, and soft brushes on the brush columns can be better attached to the surface of an object subjected to fine carving under the elastic force effect of a reset spring; by means of the technical scheme, the chippings adhering to the carved object can be better cleaned, it is ensured that the chippings can be effectively brushed away, the chipping cleaning effect and efficiency can be improved, meanwhile, the time spent on manual cleaning can be shortened, the labor intensity can be lowered, and the overall machining efficiency can be improved.

The present application relates to the technical fields of mechanical machine tool auxiliary components, in particular to a threaded sleeve tapping and chip removal device connected by a sleeve and a chip removal method thereof, the threaded sleeve tapping and chip removal device connected by a sleeve comprises a frame body, an assembly plate movably arranged on the frame body, and further comprises a magnetic attraction shaft rotatably arranged on the assembly plate, one end of the magnetic attraction shaft away from the assembly plate is connected with a material ejecting mechanism, the magnetic attraction shaft can drive the material ejecting mechanism to rotate inside the sleeve, and the material ejecting mechanism and the magnetic attraction shaft are connected with a converging mechanism, the converging mechanism can converge the chips accumulated on the parting surface to the magnetic attraction shaft, so that the magnetic attraction shaft can attract the chips; through the cooperation between each mechanism and component, the effective chip removal function inside the sleeve is realized, the chip removal effect is good, the degree of automation is high, and the threaded sleeve tapping and chip removal device connected by a sleeve is suitable for popularization and use.

The invention relates to the technical field of numerical control cutter machining, and provides a numerical control cutter and polishing equipment for numerical control cutter machining, the numerical control cutter comprises a cutter base body, the vertex angle of the cutter base body is provided with a cutting edge, the cutting edge is used for machining a workpiece, the cutting edge is provided with a concave spherical surface, and the concave spherical surface is used for cutting edge chip removal; the protruding part is arranged on the cutter base body, the protruding part is provided with a flange, and the flange is used for breaking chips; and the mounting hole is formed in the middle of the tool base body in a penetrating mode and used for mounting the tool base body on the guide rod. By means of the technical scheme, the problem that in the prior art, a numerical control tool is poor in chip breaking and discharging effect in the machining process is solved.

The invention relates to the technical field of precision machining, and provides a multi-edge ball head diamond cutter which comprises a fixing piece and cutting edge pieces. The outer surface of one end of the fixing piece is a hemispherical cambered surface, and the cutting edge piece is located at one end of the fixing piece; the cutting edge piece comprises a first cutting part, a second cutting part and a third cutting part; the first cutting part is arranged along the axis of the semispherical cambered surface and equally divides the semispherical cambered surface into two cutting spaces; the two second cutting parts are symmetrically arranged with the first cutting part as the center, and interval grooves exist between the second cutting parts and the first cutting part; the multiple third cutting parts are located in the two cutting spaces. The tool bit structure has the effect of prolonging the service life of the whole tool bit structure. In addition, the invention further provides a cutting method of the edge ball head diamond cutter.

The invention relates to the technical field of bearing machining, and provides an inner diameter grinding machine for stainless steel bearing machining, which is characterized in that a machine tool body is provided with a mounting space for mounting a bearing; the feeding piece is slidably arranged on the machine tool body; the pneumatic driver is arranged on the mounting part, the pneumatic driver is provided with a first air inlet and a liquid inlet, the first air inlet is used for introducing compressed air, the liquid inlet is used for introducing grinding liquid, the pneumatic driver is provided with a rotating end, the rotating end is provided with a liquid outlet and a first air outlet, the first air inlet is communicated with the first air outlet, and the liquid inlet is communicated with the liquid outlet; and the grinding wheel is arranged on the rotating end, and after compressed air is introduced into the first air inlet, the pneumatic driver is used for driving the grinding wheel to rotate. By means of the technical scheme, the problem that in the prior art, when a grinding machine for grinding the inner diameter of the stainless steel bearing is used for grinding, a small part of tiny chippings can be left on an inner ring of the stainless steel bearing, and follow-up use of the stainless steel bearing is affected is solved.

This invention discloses a split-type drilling tool, comprising a tool body circumferential surface, a shank, a cutting tool section, and a tool body circumferential surface. The cutting tool section, at its end away from the shank, has a tool body end face, a peripheral groove, and a central groove. The peripheral groove includes a peripheral insert positioning groove and a peripheral chip-receiving groove, and the central groove includes a central insert positioning groove and a central chip-receiving groove. The tool body circumferential surface has a peripheral chip-removing groove and a central chip-removing groove, connected to the central chip-receiving groove. The peripheral chip-receiving groove includes a peripheral chip-removing groove sidewall and a peripheral chip-removing groove bottom surface. The peripheral chip-removing groove sidewall has a groove, which is arc-shaped with a radius of R1. The maximum cutting width of the peripheral insert is L, satisfying: 0.6L ≥ R1 ≥ 0.3L. The maximum distance between the groove and the peripheral insert on the side adjacent to the tool body circumferential surface is L1, satisfying: 1.8L ≥ L1 ≥ 1.2L. This split-type drilling tool improves chip removal performance and versatility, meeting the processing requirements of different processing parameters and materials, and extending its service life.

The invention discloses a paddle-tumbler saw blade capable of easily discharging chips and avoiding tip breakage and a machining method, and aims to overcome the defects of chip blockage, saw clamping, slipping, breakage and breakage of a tool nose in the use process of the saw blade. The saw blade comprises a saw blade body, a circle of saw teeth are arranged on the edge of the saw blade body, a plurality of long tool bits are evenly distributed on the edge of the saw blade body in the circumferential direction, the long tool bits are arranged on the saw teeth, and short tool bits are arranged on the saw teeth between every two adjacent long tool bits. The edge of the saw blade body is provided with a plurality of radiating grooves. According to the paddle-tumbler saw blade, the phenomena of chip blockage, saw clamping, slipping, breakage and cutter point breakage in the use process of the saw blade are avoided.

The utility model relates to a pilot hole milling shoe tool, and belongs to the technical field of oil exploitation. The milling shoe comprises a milling shoe main body, a plurality of milling wings and a milling wing extension section, a well washing fluid channel penetrating in the axial direction of the milling shoe main body is arranged in the milling shoe main body, and the milling wings extend in the axial direction of the milling shoe main body and are arranged at intervals in the circumferential direction of the milling shoe main body. A backflow channel allowing cooling liquid discharged by the well flushing liquid channel to flow is formed in the space between every two adjacent grinding wings, the number of the grinding wing extending sections is smaller than that of the grinding wings, and the grinding wing extending sections are connected to the sides of the corresponding grinding wings and extend into the backflow channels on the sides of the corresponding grinding wings. And densely-arranged alloy milling particles are arranged on the grinding wings and the parts, used for milling the expansion pipe, of the grinding wing extension sections. By additionally arranging the grinding wing extension sections, the effective grinding and milling contact area with a pipeline to be ground and milled is increased, the grinding and milling efficiency is improved, alloy grinding and milling particles are used for grinding and milling, the chipping capacity is improved, and the grinding and milling capacity is enhanced.

The application discloses a saw blade and a processing method thereof. The saw blade comprises a disc base body and a cutter head. A plurality of cooling flow channels are arranged in the disc base body. The plurality of cooling flow channels are distributed along the circumference of the disc base body and are arranged in the radial direction of the disc base body. The disc base body is further provided with a plurality of inlets and outlets. The inlets are arranged in one-to-one correspondence with the cooling flow channels and are arranged in communication with the cooling flow channels. The inlets are arranged on the end surface of the disc base body and are used for allowing cooling medium to enter. The outlets are arranged in one-to-one correspondence with the cooling flow channels and are arranged in communication with the cooling flow channels. The outlets are arranged on the outer circumferential surface of the disc base body and are used for allowing the cooling medium to flow out. The cross-sectional area of the cooling flow channel perpendicular to the flow direction of the cooling medium gradually increases from the inlet to the outlet. The plurality of cutter heads are fixedly connected to the outer circumference of the disc base body. The saw blade of the application improves the heat dissipation and chip removal effect of the saw blade by designing the cooling flow channel.